HL.BSTART.SYS

48-bit HL. **Group:** BSTART  |  Ch 04   Block ISA — Block-structured Control Flow  |  **Length:** 48  |  **Decode:** —

Assembly Syntax

• HL.BSTART.SYS FALL<, fixup_label>

Encoding

Bitfield encoding diagram. MSB is on the left, LSB on the right.

Description

[48-bit HL.] Terminates the current block and begins the next.

Pseudocode (informative)

EndBlock(); BeginNextBlock(/* kind */);

Encoding Notes

• Closes the current bundle, initializes the next bundle descriptor, and selects its transfer and execution kind.

Full Catalog Forms

Assembly	Length	Decode
HL.BSTART.SYS FALL<, fixup_label>	48	—

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